Geometry Homework – 3-3
Name:
Date:
Block:
1) Developing Proof Complete the flow proof below.
Given: 1 and 2 are supplementary; x ║ y
Prove: q ║ r
Algebra Determine the value of x for which the lines are parallel. Then find the measure of each labeled angle.
2)
3)
4)
Developing Proof Use the given information to determine which lines, if any, are parallel. Justify each conclusion with
a theorem or postulate.
5) 11 is supplementary to 10.
6) 6  9
7) 13 is supplementary to 14.
8) 13  15
9) 12 is supplementary to 3.
10) 2  13
11) Developing Proof Complete the flow proof below.
Given: 1 and 4 are supplementary.
Prove: a b
12) Error Analysis A classmate said that AB DC based on the diagram at the right. Explain your classmate’s error.